• Technology trends
  • Patent search
  • Sign In
  • Sign Up
Patent classifications
H
ELECTRICITY
Load children
H01
ELECTRIC ELEMENTS
Load children
H01J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
Load children
25/00
Transit-time tubes, e.g. klystrons, travelling-wave tubes, magnetrons
Load children Filter patents View analytics View as hierarchy
H01J25/34
Travelling-wave tubes; Tubes in which a travelling wave is simulated at spaced gaps
Load children Filter patents View analytics View as hierarchy